what is the empty weight of 2000 Chevrolet Astro cargo van?

Look on the inside of the drivers door. The tag will tell you what the weight of the van is.

What are you going to do with 2,000 Astro Vans? Isn't one enough?

your best bet if i am reading you right is to empty out every thing from the van and ask a trucker where the nearest transport weight station is to get weighed , other wise the weight that the vans information will be with all equipment aboard the van